![subject](/tpl/images/cats/himiya.png)
Chemistry, 09.12.2020 01:00 AutumnJoy12
Based on the following data, what is the standard Gibbs free energy of formation of the sulfate ion at 298 K? ( R = 8.31 J/(K ∙ mol))
PbSO4(s) Pb2+(aq) + SO42–(aq); Ksp = 1.7 × 10–8
Substance ΔG°f (kJ/mol) at 298 K
Pb2+(aq)
–24.4
PbSO4(s)
–813.0
a. –788.6 kJ/mol
b. –793.1 kJ/mol
c. –837.4 kJ/mol
d. –744.3 kJ/mol
e. 832.9 kJ/mol
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 15:20
Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:00
The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:00
Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 19:30
Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?
Answers: 1
You know the right answer?
Based on the following data, what is the standard Gibbs free energy of formation of the sulfate ion...
Questions
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/es.png)
Spanish, 05.02.2021 17:50
![question](/tpl/images/cats/mat.png)
Mathematics, 05.02.2021 17:50
![question](/tpl/images/cats/istoriya.png)
History, 05.02.2021 17:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
English, 05.02.2021 17:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.02.2021 17:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.02.2021 17:50
![question](/tpl/images/cats/fizika.png)
Physics, 05.02.2021 17:50
![question](/tpl/images/cats/mat.png)
Mathematics, 05.02.2021 17:50
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.02.2021 17:50
![question](/tpl/images/cats/mat.png)
Mathematics, 05.02.2021 17:50
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.02.2021 17:50